Press.



t. HAEFELY.

PRESS.

APPLICATXON men lutenmi Jam. 11, 19M}.

3 $HEETS -SHEE I- I.

ATTORNEY WITNESSES:

E. HAEFELY.

PRESS.

APPLICATION FILED MAY 21. 19:2.

INESSES:

E. HAEFELY. PRESS.

APPLICATION FILED MAY 27, I912.

1,168,067. .lafenred Jan. 11, 1916.

3 SHEETSSHEET 3.

- ATTORNEY UNITED s A'rs PATEN' onrron.

EMIL HAEFELY, OF BASEL, SWITZERLAND, ASSIGNOR .TO WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

PRESS.

Specification of Letters Patent.

Patented an. 11, 1916.

Application filed May 27, 1912. Serial No. 700,028.

To all whom it may concern .Be it known that 1, E1111. HAEFELY, a citizen of the Republic of Switzerland, and a resident of Basel, in Switzerland, have invented a new and useful Improvement in Presses, of which the following is a specifica tion.

My invention relates to power-operated presses and it has special reference to'such presses as are adapted to remove tubularbodies from mandrels.

'The object of my invention is to provide a simple and durable apparatus, of the classabove indicated, by means of which relatively thin insulating tubes, or other similar bodies, may be removed from the mandrels on which they are constructed.

It is a usual practice to manufacture insulating sleeves or bushings for electrical apparatus bywinding a long strip of insulating fabric, such as paper or cloth, very closely about a metal cylinder which is suitably rotated and is known as a mandrel. VVhenthe insulating tube is completed, it is a comparatively difficult matter to remove it from the mandrel, particularly if the tube is thin relative to its inside'diameter,

without injuring it mechanically or impairing its insulating properties. I

According to my present invention, I provide a press which may be operated by a small electric motor or by other suitable means, and be particularly adapted, in structure and arrangement, to the service for which it is intended.

Figure 1 of the accompanying drawings is an elevation and Fig. 2 is a sectional view, on a line II-II of Fig. 1, looking in the direction of the arrow, of a press constructed in accordance with my invention. Fig. 3 is a plan View of the carriage and mandrel collar of the machine shown in the v The end frame 1 and the post 3 are respectively provided with inwardly extending shaft projections 10 and 11, which are substantially in alinement and are bored out and notched at their ends to provide open bearings 12 for the shaft projections 13 and 14 of the mandrel.

The end frame 2 is of U-shape, being provided with two side arms and being open at the top in order to permit the mandrel 15 to be lowered into position'by a crane or other suitable means. i"

The carriages consists ofa frame having" side members 16 provided with holes to receiverthe tiefrods 8, horizontal cross beams A collar 19 of wood, or other suitable material which is unlikely to injure the insulating tube, is first so fitted upon one endv of the mandrel as to abut against the ad jacent end of theinsulating tube.

The adjusting screws 5 and 6 are support ed in suitable bearings in the end frames 1 and 2, and are preferably located in a horizontal plane that is coincident-with the central plane of the mandrel. At one end the screws 5 and 6 extend through the end frame 1. and are provided with worm Wheels 21. The electric motor 7 is provided with a pinion 22 which meshes with a gear wheel 23, on a jack shaft 24, and the worm wheels 21 mesh with Worms 25 which are secured to the jack shaft 24:. By this means, the motor is able to synchronously drive the adjusting screws 5 and 6 and adjustthe carriage, as hereinafter pointed out. The adjusting screws 5 and 6 cooperatively engage suitable nuts 26 inthe members 16 of the carriage.

The operation of the press is as follows: The carriage 4 isfirst moved close to. the end frame 1, and the beams 18 are adjusted to occupy positions at equal distances from the central longitudinal plane of the machine and to permit the exposed end of the mandrel, which is next lowered into position, to just enter the space between them. A collar 19 of suitable size is placed on the mandrel, the shaft, projections 13 and 14 of which are lowered in-to the open bearings 12. The motor 7 is now operated in such direction as to move the carriage 4 toward the end frame 2 and thereby move the collar 19 and the insulating tube 27, which is engaged byit, along the mandrel until the tube is transferred to the projection '11. The motor is then reversed and the carriage returned to its original position, the mandrel removed and the insulating tube taken away from the projection 11.

The vertical beams 18 are provided with plane surfaces which engage the collar 19 in such manner that there is no tendency for the collar to become twisted or to bind on the mandrel. Furthermore, it is evident that the arrangement of the adjusting screws 5 and 6 is such as to apply pressure to the carriage in an advantageous manner.

Structural modifications may, of course, be effected within the spirit and scope of my claims.

I claim as my invention:

1. A press comprisingva stationary frame having supporting bearings for a mandrel, and a carriage supported on the frame and movable longitudinally of the mandrel, said carriage having pressure members that are adjustable transversely with respect to the mandrel.

2. A press comprising a supporting frame having spaced end members joined by tie rods, a carriage movably supported on the tie rods so as to be adjustable longitudinally of the mandrel and having pressure members adjustable transversely with respect to the mandrel, actuating screws for the carriage, and means for synchronously driving the said screws.

3. A press comprising a stationary frame having end members joined by tie rods, and a stationary post joined to one of the end members by tie rods and having an inwardly extending shaft projection provided with an open bearing, a similar projection at the opposite end of the structure, a carriage movably supported upon the tie rods between the end frames, adjusting screws rotatably supported in the end frames and extending through nuts in the carriage, and means for, synchronously driving the adjusting screws. I

4. A press comprising a stationary frame, a mandrel, bearing members for the mandrel projecting inwardly from the ends of the frame, the said members being of less diameter than the mandrel, and a carriage supported by the frame and movable longitudinally of the mandrel, the said carriage hav-' iing pressure members adjacent to the manrel. V

In testimony whereof, I have hereunto subscribed my name this second day of May,

EMIL HAEFELY.

, Witnesses:

GEO. GIrroRD, ARNOLD ZUBER. 

